Material-handling mechanism.



G. A. PRAYER. MATERIAL HANDLING MEGHANISM. 'APPLIOATION FILED ammo,1910.

1,036,481 Patented Aug. 20, 1912.

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COLUMBIA PLANOGRAPH cm, WASHINGTON. n. C.--

G. A. PRAYER.

MATERIAL HANDLING MECHANISM.

APPLIOATION FILED JAN. 20, 1910.

Patented Aug. 20, 1912.

3 SHEETSSHEET 2.

COLUMBIA PLANOGRAPH COUWASHINGNN, n. c.

O. A. PRAYER.

MATERIAL HANDLING MECHANISM.

APPLICATION IILBD JAN. 20, 1910.

Patented Aug. 20., 1912.

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FIG.

COLUMBIA I'LANOGHAIIII C1L.\\'ASHINGTON. ILC.

ilTED STATES PATENT OFFTQ.

CHARLES A. PRAYER, OF TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TOTHE BUCYBUS COMPANY, OF SOUTH MILWAUKEE, W ISCONSIN, A CORPORATION OFWISCONSIN.

MATERIAL-HANDLING MECHANISM.

Applicationzfiled January 20, 1910.

This invention has utility when-embodied in drag line excavator andloading mecha nism.

Referring to the drawings: Figure 1' is a side elevation of theinvention for drag line bucket adapted to discharge'into a skip; Fig.2'isa sectional view looking down on the lower portion of the pivotedderrick frame and its supportingbase; Fig. 3 1s a perspective viewof-the mast and boom carried by the derrick frame; Fig. 4 is afragmentary view of the adjusting device for varying the inclination ofthe boom; Fig. 5 is a side elevation of the mast and boom, showing thebucket being elevated by the boom; Fig. 6-is a View similarto Fig. 5,but with the bucket in dumping position; Fig. 7 is an enlarged detail ofthe trip-and retaining devices, showing the parts of the bucket indumping position; Fig; 8 is a longitudinal section ofthe bucket; andFig. 9 is a front view of the bucket.

The platform or base 1 carries theframe the base 1 by guys 9. Extendingthrough:

the uprights of the mast 8 and inclining'upwardly is the way 10 for theskip receptacle or dump car 11, the travel of which car along the way10in transporting material 1s cont-rolledby the prime mover 7.

Freely swinging'outward from the frame 2 and over the lowerend of theway 10, is

the boom 12, pivotally mounted on the bar 13' in the mast 8. This boomhas extending from near its outer free end, the guy 14. with dividedsections 15 continuous over guides 16 on' the mast 8, to the after guysections 17 which pass over the guide 18 carried by the boom 12, to beengaged by Specification of Letters Patent.

travels alongthe boom 12.

' Patented Aug. 20,1912.

Serial No. 539,047.

the rod 19, adjusted by the block 20. These divided or A-guys permit theboom to antomatically assume medial position down wardly inclined overthe way 10, if clumpmg is to be into the skip car 11 instead of intovehicles or I other receptacles coming under the boom 12. The angle ofthis inclination. of the boom 12 is readily varied from the singleadjusting block 20, owing to the guys being continuous. Whilenormally'the boom assumes the medial position, it is free to swinglaterally, due to the form of guys adopted. It is to be further notedthat the three point bearing, has one of the points disposedcentrally ofthe mast 8. The single point of the bearing under the mast properpermits the free rocking of the mast. to vertical position instead oftilting to some inclined position which the forward portion of the basemay assume. This operationis insuredby the guys 9.

Carried'bytheframe 2 is the prime mover 21, which through drum 22controls the guide line 23, extending over guide 24t in the mast 8,

through guide 25 of bucket 26 to the remote section 26. Upwardlyextending from the forward end of the bucket body 26 are the standards35 for the guides 31, while from the rearward end of the bucket body 26rise the standards 36 for the guides 25, 32.

Longitudinally extending along the under side of the body 26 are thevanes 37 serving to guide the bucket in its drag travel, as well as toscore or loosen the material in order that it may more freely begathered into the bucket in the subsequent bucket travels. The thirddrum 38, actuated by the prime mover 21, actuates drag line 39,extending through the movable guide block 40 to the adjustableconnection 41 with the dumping bucket section 34:. The bucket section34; is normally held in material retaining position as to the bucketsection 26, by the latch 44, as the block 40 The lower end of theboom'12 has a deflected portion 42 serving as a stop to limit thedownward travel of the block 40 along the way 43 of the boom.Accordingly as the drag line 39 man 27 to the dumping or innertelescopic section 34 of the bucket having the body hauls the assembledbucket sections toward the boom 12, the readily deflected boom, will beactuated by the block 40 to swing into line with the approaching bucket,and point between the upright standards 35, 36, as the bucket rides ontothe boom. Guide rollers 31 and 32 roll along the top rib of the-boom-12, While the bucket pushes the block 40 up the guide or way 43.

As the bucket latch 44 rides against the cam 45, the pivoted member 46is lifted against the action ofits weight 47, which weight 47 normallyholds the notch 48 of the member 46 riding on the pin 49 in the boom 12.The continued. travel of the bucket brings the bar 50 to-move againstthe cam 45, as the incline 51 of the member 46 coacts with the upwardlycurved face 52 of the latch 44 as it rides past. Bar 50 now ridingagainst the curved face 53 of the member 46, and aided by the action ofthe weight 47, forces the extension of the member 46 including theincline 51, into the opening 54 in the latch 44, while the latch islifted by the incline 52 riding up the incline 55, thus resulting in aretaining device automatically operated, to maintain the body section 26in held position.

The lifting action of the trip 55 releases the latch 44 from the bar 56on the dumping section 34, so that continued actuation of the line 39drags the dumping section through the body section 26 to effectivelyexpel all material from the bucket. This automatic dumping, as well aselevating of the bucket is effectively accomplished by simple andordinary manipulation of the single drag line 39. During this dragoperation for filling and elevating aswell as dumping into the skip 11for still further removal from the place excavated, the return line 29has been running freely, while the guide line 23 may be controlled topay out, take up slack, or still further shortened to have the bucketswing free of the material between the dead-man 27 and the mast 8, asdesired.

With the bucket dumped, the drag line 39 is slacked, this of itselfbeing effective to start the downward travel of the section 84. Howeverfor maximum speed in handling, thereby working the mechanism forgreatest possible output, the return line 29 may accelerate the travelof section 34. As latch bar 56 goes back, it is guided by incline 57, tostrike cam face 58 of the member 46, which action forces the member 46out of the retaining position in the latch 44, thus allowing the latchto be forced by this cam face 58 into holding relation with the bar 56,thus locking the bucket sections assembled as they travel down the boom12. The outward limit of travel of the section 34 as to the section 26is limited by the stops 59 on the section 26.

All connections to the bucket are within the normal bucket width, thuspermitting of close lateral working for clean removal of material, afeature of considerable value in many instances not only in time but inlabor expense. Even without adjusting the frame to swing laterally onits bearings, the device has considerable range of action, for the boom12 may, owing to its short bearing on rod 13 and to equalizing guys 15,17, swing quite a little out of line tonose into and lift theapproaching loaded bucket. As the approach line of the bucket islowered, owing to the removal of material, the boom 12 may be adjustedto incline down farther to properly receive the bucket. By varying thepoint of connection of the drag line 39 to the connection 41 the angleof draw of the bucket into the material may be adjusted, so that ashallow cutting occurs, or a cutting of greater depth in the regularfilling operation.

What is claimed and it is desired to secure by Letters Patent is:

1. A material handling mechanism comprising a vertically pivoted framehaving at one side thereofa pivot bearing, and laterally of the pivotbearing a pair of bearings movable as to the pivot for sustaining theframe as to the pivot bearing, a vertical mast centrally of the pivotbearing point, a boom pivoted to said mast and extending away from saidpair of bearings, a drag bucket, bucket actuating means comprising aline coacting with the boom and extending from the boom to the bucket,and a line extending from the bucket and away from the boom, said bucketactuating means being for drawing the bucket toward and from as well asalong the boom, and flexible means extending from the boom to the mastto adjust the boom for bucket travel therealong.

2. A material handling mechanism com prising a frame, a bucket, drag andreturn lines for the bucket, a pivoted member mounted on the frame andprovided with means to nose into said bucket toward and from whichmember said lines are connected to actuate said bucket, bucket guidingand dumping means carried by the member, and a controlling device forthe bucket effective through the drag and return lines to actuate thebucket toward and from the dumping means.

3. A material handling mechanism comprising a frame, an overhangingmember mounted thereon and provided with means to nose into and guide abucket, a bucket guide line, and a drag line bucket movable in fillingalong said guide line to coact with the guiding means. of theoverhanging member;

4. A material handling mechanism comprising a frame, an overhangingpivoted member mounted thereon and movable to nose into a bucket, saidoverhanging member provided with a guide and a trip, a bucket engageableby said member and movable along said guide to be dumped by the trip, acontrolling line guide beyond the member, and a controlling line aboutthe guide to actuate the bucket toward and from the member.

5. A material handling mechanism comprising a frame, an overhangingboom. mounted thereon, said boom movable to nose into a bucket andprovided with an inclined guide and a retaining device, a bucketengageable by said boom and movable along said guide to be engaged bythe retaining-device, a line guide beyond the boom, and a controllingline for the bucket coacting with the line guide to actuate the bucketfrom the boom.

6. A material handling mechanism comprising a frame, a boom mountedthereon, said boom movable to nose into a bucket and provided with aninclined guide, a trip and a retaining device, a bucket engageable bysaid boom and movable along said guide to be held by the retainingdevice during the dumping of the bucket by the trip, a line guide beyondthe boom, and a controlling line for the bucket coacting with the lineguide to actuate the bucket from the boom.

7. A material handling mechanism comprising a frame, "a boom mountedthereon, said boom movable to nose into a bucket and provided with aretaining device and a trip, a bucket engageable by said boom andmovable to be engaged by the retaining device during the tripping of thebucket for dumping, a line guide beyond the boom, and a controlling linefor the bucket coacting with the line guide to actuate the bucket fromthe boom.

8. A material handling mechanism com prising a frame, an adjustable boommounted thereon, said boom movable to nose into a bucket and providedwith an inclined guide, a bucket having guide coacting means spaced fromthe bucketbottom to permit bucket travel along the inclined guideengageable by said boom and a line guide beyond the boom, and a controlline coacting with the line guide to actuate the bucket from said boomand along said inclined guide.

9. A bucket elevating device comprising a pivotally mounted boomprovided with a bucket guide, a drag line for the bucket extendingbeyond the boom, a return line, a line guide beyond the boom with whichsaid return line coacts, a bucket engaged by the line to be actuatedtoward the boom and along said guide, and adjusting means for directingthe boom into receiving position for the bucket.

10. A material handling mechanism comprising a frame, a bucket, a boompivotally I mounted on the frame for movement rela tively thereto, ablock mounted to slide longitudinally of the boom, said boom providedwith a guide to engage the bucket, means on. the bucket for embracingthe guide on the boom in its movement along the same and a drag linefrom the bucket through the block to guide the bucket to the boom, saidline drawing the bucket into position for the boom to nose into saidmeans on the bucket and then cause the bucket to ride up the boom guide.

11. A material handling mechanism comprising a frame, a bucket, a boompivotally mounted on the frame for movement relatively thereto,adjusting means for varying the position of the boom, said boom providedwith a guide to engage and lift said bucket, means on the bucket forembracing the guide on the boom in its movement along the same, a blockmounted to slide longitudinally of the boom, and a drag line from thebucket and through the block to draw the bucket into position for theboom to nose into said means on the bucket and then cause the bucket toride up the boom guide.

12. A material handling mechanism comprising a frame, a boom mounted onthe frame, said boom being laterally movable and having its free enddownwardly extending, a blockreciprocable along said boom, a bucket, anda drag line from the bucket and through the block, to cause the block todeflect the boom in line with the approaching bucket.

13. A material handling mechanism comprising a frame, a boom pivotallymounted on the frame for movement relatively thereto, said boom havingits free end downwardly extending, a block mounted to slidelongitudinally of the boom, a bucket, a bucket guide on the boom, meanson the bucket for embracing the guide on the boom in its movement alongthe same, and a drag line from the bucket through the block to draw thebucket into position for the boom to nose into said means on the bucketand then cause the bucket to ride up the boom.

14:. A material handling mechanism comprising a frame, a boom pivotedthereto, incline adjusting mechanism for the boom, including a flexibleguy permitting lateral movement of the boom, a guide carried by theboom, a bucket movable along the inclined boom, flexible actuating meansextending from the bucket and coacting with the guide, and a drivingdevice to which the means is connected to haul the bucket toward theboom.

15. A material handling mechanism comprising a frame, an inclined boompivoted thereto, guy connections permitting lateral movement of theboom, boom incline adjusting means for the connections, a guide carriedby the boom, a bucket movable along the inclined boom, flexibleactuating means extending from the bucket and coacting with the guide,and a driving device to which the means is connected to haul the buckettoward the boom.

16. A material handling mechanism comprising a frame, an inclined boompivoted thereto, incline adjusting mechanism for the boom including adivided forward guy and an after guy having sections continuous with theforward guy, a guide carried by the boom frame, a bucket movable alongthe inclined boom, flexible actuating means extending from the bucketand coacting with the guide, and a driving device to which the means isconnected to haul the bucket toward the boom.

17. A material handling mechanism comprising a frame, an inclined boompivoted thereto, forward and rear guys from the frame to the boom, boomincline adjusting means for one of the guys to vary the angle of theboom relatively to the frame, a guide carried by the boom, a bucketmovable along the inclined boom, flexible actuating means extending fromthe bucket and coacting with the guide, and a driving device to whichthe means is connected tohaul the bucket toward the boom.

18. The combination with a sectional bucket of an elevating boom, abucket section assembling mechanism comprising a retaining device on theboom for a first bucket section having means to stop said section fromforward travel and hold said section from backward travel, guiding meanson the boom to permit actuation of the bucket sections into assembledmaterial retaining position, said retaining device provided withholding'means for engaging the first bucket section, said second bucketsection provided with releasing means coacting with the holding means asthe second bucket section comes into assembled position relatively tothe first bucket section to disconnect it from the retaining device, anda line operable to assemble said sections.

19. The combination with a guide of a bucket having a releasable bodysection movable along said guide, there being a dumping section for saidbucket, holding means for maintaining said sections assembled, andbucket assembling mechanism comprising stopping means on the guide toengage and trip the holding means to release the sections to permitoperation of the dumping section as to the stopping means, said stoppingmeans having return prevention means engaging and holding the bodysection for re-assembling.

20. The combination with a guide of a sectional bucket movable alongsaid guide, holding means for maintaining said sections assembled, atrip mounted on the guide to release the holding means to free thesections for relative movement by stopping one of the sections, and abucket assembling mechanism comprising a retaining device on the guideengaging the holding means to thereby hold the stopped section frombackward travel relatively to the guide, said device having releasingmeans operable by relative travel of the section.

21. The combination with a guide having a trip thereon, and bucketassembling mechanism comprising a retaining device, of a bucket having areleasable body section, a dumping section, and holding means formaintaining said sections assembled, said body section movable alongsaid guide to be stopped by the trip as the dumping section is releasedby the trip, said body section being held from backward travel by theretaining device during the operation of the dumping section, therebyproviding a positive holding of the body section when released from thedumping section for subsequent re-assembling.

22. The combination with a guide having a trip and bucket assemblingmechanism comprising a retaining device on the guide, of a singleworking and sectional bucket, holding means for retaining the bucketsections in material retaining position, and a line to one of the bucketsections to actuate the bucket along the guide, said trip having meansfor disconnecting the section holding means and means for stopping oneof the bucket sections independently of the others, said retainingdevice being provided with means for preventing backward travel of thestopped section to permit reassembling of the sections, said lineconnected bucket section provided with a release for the retainingdevice effective to bring about reassembling of the bucket sections onthe return movement of the line connected bucket section along the guideto the stopped section.

23. The combination with a guide having a trip and bucket assemblingmechanism comprising a retaining device thereon, of a sectional bucket,holding means for maintaining the bucket sections in material retainingposition, a line to one of the bucket sections to actuate the bucketalong the guide, said trip having bucket section stopping means to freethe section holding means and release the sections, said retainingdevice having means to hold the stopped bucket section from movementalong the guide, and a second line coacting with said sections andactuable to move the said sec tions into material retaining position,said line actuated section having means to free the held section fromthe retaining device in re-assembling.

24. The combination with a mast, and remote from the mast an anchor, ofa line extending from the mast to the anchor, a bucket mounted on theline, drag and return lines for the bucket, a movable boom supported bythe mast, and a line guide on the boom for the drag line, said boomdeflected by the drag line toward the bucket and provided with a guideto lift the bucket.

25. The combination with a mast, and remote from the mast an anchor, ofa line extending from the mast to the anchor, adjusting means for theline, a bucket mounted on the line, drag and return lines for thebucket, a movable boom supported by the mast, and a line guide on theboom for the drag line, said boom deflected by the drag 15 CHARLES A.FRAYER.

Witnesses:

GEO. KIRK, GLADYS J AMESON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

It is hereby certified that in Letters Patent No. 1,036,481, grantedAugust 20, 1912, upon the application of Charles A. Frayer, of Toledo,Ohio, for an improvement in Material-Handling Mechanism, an errorappears in the printed specification requiring correction as 'follows:Page 4, line 98, for the Word and read and, and that the said LettersPatent should be read with this correction therein that the same mayconform to the record of the case in the Patent Oflice.

Signed and sealed this 17th day of September, A. D., 1912.

o. o. BILLINGS,

[SEAL] Acting Commissioner of Patents.

